The first one is an inter-active combination of MTA table and MTA diagram that illustrates how we apply this tool. You can practice to work with it by entering your own project milestones and the relevant dates.
If you click on the following image or link the MTA demo will open in a new tab or window of your browser.
The next one is an animation of EVA that illustrates this tool. You can play it right here on this page or download it as a zip-file.
It fits to the data included in that EVA-template in sub-section Free Project Management Tools
Here, you can follow a few steps into the forward / backward pass and then do your own calculation based on a small network diagram.